Wyze and Yi are good budget brands. I believe Yi first got their start making GoPro copies. The more expensive brands will have more features, better support and stability. Most will be using ultra wide angle lenses so there will be quite a bit of barrel distrotion, especially if the camera is placed close to the tank. The better brands will have some kind of correction in their software to reduce this. Not all have support for viewing from a web browser. The Wyze v2 I have does not support this but a work around is using the app Tinycam to run a webserver.
Do note that for the ones that can be reached from the outside without any router configurating are sending the video feed to their servers.